Adjustable lock



W. F. DISEL AND E. R. WEBER,

ADJUSTABLE LOCK.

APPLICATION FILED JAN.9,1922.

'4 SHEET -SHEET 1- W-F DIESEL AND E. R. WEBER1 ADJUSTABLE LOCK.APPLICATION HLED4JAN.9,1922

Patentsd Oct. l0, 1922 4 SHEETS-SHEET 2.

ATTORNEY w. F. DIESEL AND E. R. WEBER.. ADJUSTABLE LOCK.

APPLICATLON FILED JAN.9.1922. swggggj ffggo y E11-atente@ Got. L09 w22.

f 4 SHEETS-SHEET 3.

W. E. mEsEE AND E. E. WEEEH.

ADJUSTABLE LOCK. APFLlAcATmN FILED JAN. 9. 1922.

Hamm.

EVEBLLIAG; EESEL AND EUGENE R. WEBER, F RGCTLESTER, NEWT YRK,lSSIG-NOBJS TG SIRGWNT s GBEENLEAF, INC., 0F ROCHESTER, NEW' ADJUSTABLELGCE.

Application filed January 9, Serial No. fi).

To 'GN whom may concern.'

Be it known that we, vWinnnaiii Dnsnn and EUGENE il-Yenes, of Rochester,in the county of Monroe and State of New York,

1,5 have invented` certain new and useful iniproreinents in AdjustableLocks; und AWe de hereojf declare the oliowing to be :t full, cie-sr,and exact descriptien oi the seine, refei'ence being had to theznrconipanying drawings, forming ai part of this speciiication, end tothe reference numerais. marked thereon.

Thisinvention rel-etes te locks and more particularly to the varietywhich are adjustable for the eperationby different selec-ted keys7 thechief object oi the'inyention being;

to provide a simple, reliable und e'fiicicnt iock of this characteraffording a high de giee 0i' protetion against unauthorized operation,While oi' :i simple 'form of construction comprising comparatively ie'vv.parte inexpensive to manufacture. To these sind other ends theinventief; resides in certain improvements and combinations of parts eilas Wiii hereinafter be mere fully described, the novel features being;pointeci Claims at the enel ofthe specidrawings A i is e 'front'elevation of' a embodying the present invention;

Fig-use 2 is e vrear eievation ef the. seine;

Figure 3 is an enhirgged front elevation of tlieilecli with its coverplaie removed to show the Woiiing parte in nonmi locked position;

eiis View to Fivure 3 but snm'NY ie' the parte under operation byprimary key; W siniier to Figure 5 ont showing; the pn s moved teiinieckeil pesi tion by n secondary c? key;

Figure 7 is s sii rtly sinken.

shoni D" s in positie' fer ceeperstien n ii'li en f 5G key;

Figni'e S iiinstiistes the edinstment ci the 'tuniblers seiected seco c.i"

inve;

ligure@ is e. View einen 'w til the guard tumbler during adjustment oi"the lock;

Figure 10 is s section on the line 10a-l0 of Figure 3;

Figure ll is a section en the line of Figure i;

Figure l2 is e sectien on of Figure 1 Figure 13 is a View simier 'toFifriire l kewl il:

the line but showing the adjusting ,key in tn Figure lli is a. sectionen the line l of Figure Y;

T" is setion on the Eine lamv .e oiE Figure 9;

Figures 16 and i? ere sectional vienissuc stantialiy `on tile line16h-16a or Figure 8 showing the Operation oli the adjusting key; Figuie18 is en enlarged deteiivicw of the interengaging ,parte of 'theadjustsbie' tumbler sections.

Similar reference ninnereis throng Aout the eeverei views indicate theseme parte.

The invention is embodied the present differentlei is also provifiiiniiy herea'ie simpie forni cnnstriiction singie of tnn'ible usualiinc-lis of 'this tjfn and construe' n picwined which is more able enc'reiieble and inexpensive to Mii because of its simplicity.

eieriing te t Le drawings for il more tlctsiieci escription the presentenibo o s leek hef/ing e ce i any" :20y adeptes the inner side of a dooror other closure by fastening means passing through openings 2l at thecorners ot the casing. dit 22, on the iront ot the lock, is a coverplate secured thereon by means of a screw 23, and having a sleeve 2%- inwhich and in the side of the casing the plug or barrel is rotatablysupported. The latter sleeve and barrel extended to project through anopening in a door adjacent the front thereof for pu "'ioses ofaccessiliility. The rear wall of, the casing yis provided with anopening S for the recept-ion of an adjusting or change key.

The bolt is shown at 26, Figure 9, as sliding in an opening in an end ofthe tasing and extending at one side lengthwise of the same adjacent itsopposite end where it is slotted as ati/37 for supporting, slidingengagement with a spindle 2S lixed on the casing. The outward or lockingmovement ot the bolt is limited by engagement ol a Ishoulder thereonwith a post 3() on the casing which also serves to limit movements ofthe tumbler means as hereafter explained. The bolt at its lower edge isrecessed as at 3l. to receive an arm 82 of the usual or any suitableconstruction fixed on the barrel 3B which is rotated as usual the keysfor sliding the holt. The latter carries also a stub or fence 34: andhas formed therein an opening' 35, Figure 6, arranged to register with'the change key opening 25 in the casing when the bolt is in extended orlocked position.

Each of the single set ol tumblers employed is preferably pivotallysupported on the spindle 2S and moved to bolt releasing position by keysinserted in a common keyhole in the barrel 33. As stated. the presentembodiment is of the multiple key type operated by primary and secondarykeys and to this end the set of tumblers comprises a primary or slidingtumlbler 36 best illustrated in Figures 3 to G inclusive. This tumbleris in the form of a. plate having an elongated opening 37 at one endsupporting it 'tor pivotal and Sliding movement on spindle The other endoli the tumbler is gated as at 38, to receive the `fence on the bolt,one side of the gate having an oll'set shoulder 39 and the other havingau ol'set shoulder Ll() connected by an inclined surface 4:1 with theside ot'A the gate proper. A spring 42 carried by the tumbler andencircling spindle 28 for engagement with the top of the casing, tendsto move the tumbler dowl'iv'aidly until stopped by post 30. The

'lower side o the tumbler is formed with a for cooper-ation with thepreparatory projecting shoulder 43 adjacent the barrel key. lin lockedposition 'o1A2 the parts the primary tumbler occupies the position shownin Figure The primary or preparatory key 413 'shown in Figure of thepresent lock is illustrated in Figure 1l as stepped to clear all 'othertumblersexcept the primary one. Then the primary key is inserted in thebarrel and turned in a clockwise direction to the position shown inFigure l, the primary tumbler is raised and during the return rotationand withdrawal ol'l the key the tumbler is lowered and moved byengagement of the key with shoulder 13 toward the fence as shown inFigure 5, so that the otl'set shoulder 4() ot' its gate comes to rest onthe top ot' the tence. The tumbler remains in this position until thebolt is retracted by a secondary or operating key when the fence,sliding over the inclined gate surface stl, aligns the tumbler and movesthe same to the right to the posi tion shown in Figure 6. lVhen the boltis again extended the primary tumbler drops to the initial position ofFigure 3, requiring the operation ot the primary key as described foragain unlocking the bolt.

The guard tumbler 44, best shown in Figures 7 and Sl, is in the t'orm ofa plate and has a. simple pivotal movement on spindle 28, being urgedtoward the key barrel by means ot' a spring 45. This tumbler has at itsbottom edge a sweep surface 46 which is engaged by a corresponding biton all of the series ot secondary keys, to raise and position thetumbler so that a gate 47 therein is aligned with the fence to .releasethe bolt. 'This tumbler has formed therein an opening or keyhole 48arranged to register, when the tumbler is thus brought tov boltreleasing position, with the keyhole 25 in the casing through which thechange key indicated at 48 is inserted. passed through the guard tumblerfor maintaining the latter in raised though not in bolt releasingposition, during adjustment ot' the lock, and the adjusting or changekey is recessed as at 45), Figure 17, in position to receive the top ot'the keyhole otl the guard tumbler when the change key is fully insertedin the lock. After the guard tumbler has been raised to bolt releasingposition as 9, by one secondary key, and thc change key inserted asdescribed, the removal ot' this secondary key allows the guard tumblerto drop until the upper end ot its keyhole engages in the recess 45) ot'the change key, thus obstructing withdrawal of the latter until asecondary operating key is inserted and turned to raise the. guardtumbler and release the change key.

It is evident from this construction, shown in the drawings, that theguard tumbler normally obstructs the/insertion of an object or changekey through the opening in the easing for the latter and that one ot theserieso secondary keys corresj'ionding tothe lock must be employed tomove the guard tumbler to position to release the bolt The latter maythus be lll KIJK

seconda r zuid to permit the insert-ion 'oit their @bange key. Thelatter, When inserted`r is held against vif'ilidrawal by tlie guardtunibler tended. The change kej,7 is pre'feiablj,v proi which' can onlyoe moved to release tule eluinge key and Ythe tumbler and bolt by meansof one ot the secondaryT keys. This prevents improper adjustment of theadustable tumbleis hereafter described lor the purpose oif renderingtlieni iiielleetive or respo'iisl to en instrument other than the y keysof tlie look,

odius'teble tuinblers, ot' wliicli, in tlie iistenee, there are iour (e)indicated i enerelly 50, Figures -l and 5, each eo? o sections, keyactuated sweep sel-it n ,end e gated detent section lLN sections ofeaoli tin ions prei with iuterengaging paris or teeth 53, siiown indetzril\iii\ Fig- .irg the same in different addius'nient. Bot-li see-;iivoizaiiy supported 'for inovenient one on spindle 28 and in addibee i.ring opening for the spindle se tion, preferably t-lie detent seetientis elongated to provide for movement oi' the sections relative to eacliother t ansrersely J in :i direetoii igor engaging and disengaging liecooperar ting; teetli 53. The sections are sliown rlisenseged' iii i ure8 by suoli iiio'renientl oi lie cleteiit seeeion' toward the left,

tre tbe sweep section so that it may dropwi Cooperation with i second--lie lool; is to be iiiadey rei tor movement as one. otioiisare providedWitli tlie Cheng or part for urging 'rt-lie detent yieldribly towardtlie sweep sections to maintain tliein in conneeted relation. i:'eepsections also are provided with spr if; elements 55 for urging the eineand tli letz-:nt sect-ions and connected v oi iiirai'eiv for looperisshown iii -etli oit insure proper eure i 1- W. toe seeiioi engagement illat lateral tendency; or

deseribed pret- :s provided with i tbe sections are again' vided witli ebit 5T for engagement ith the sides ol tbe keyhole oi" tlie admi-stabletumblers. The latter in t-lie present inst-(inve aire enlarged as sliounso tlizit they erin be engaged by the kejY to more tlie deteiit serNtions` only 'when tlie ke)r is properly inserted and rotated and suolimovement ot' the key serves to actu-ate tlie detent tions out oi"engagement witli the sweep sei'- tions to allow the latter to drop ootbe Coi'- responding bits olE tlie inserted secondary key, lt is to' benoted that u'lien :i secondar)r key has been employed to set. up tbetuniblers, vu'itli tbe bolt extenrfled4H to perinit the insertion ot aelinngre kein and lie latter luis been inserted iii tlie lock :isdescribed and rotated, lie cliiiug'e kej.' liolfls the bolt extended andtbe tumblers iii b:

change' key itself is niaiiitainei'l iu tlie lool:

bi tlie Huard tumbler. Tlius the tumbler o" tlie spindle, or in otherWords` cannotbe arranged by the change ke): in eil'ective position, noreen they be adjusted or set up to any object or. key other than :isecondari7 key oi the look series tor the reason that one oi, tlielatter is required to .raise the `guard tumbler and tlius release theChange key and thereby release tlie bolty and tuiiiblers tor subsequentopen-uilen. lt is aopzirent also that tlie Change key is sooonstr'uei'ei'l that it cannot be Witlidraivn until it lies been turnedso es to release tlie edjustable tumbler sections for reeiigzhenieniiwith eeeli other, and, of course, changing ol" tlie tuinblers in Adiemarmer described can only be completed when tlie secondary key' has beeninserted and partially rotated to 'the proper position because oi tlieshape oit 'the guard tumbler. Preferably the tence end the adjacentsurfaces ot the `guard and adjustable umblers are serrated :is sliovrnto insure iist improper operation of tlie look, Well understood in tlieart'.

The operation of lu-,lock lies been e3:- plaiiied in Connection with tbedescription oi its construct and may be summarized ifollo. ln ordii'uuyuse the kejyY is inserted in tlie lock and oper" align :sud support theprimar" mo.' on tbe t Atence :is sbowii in rieures e, :iii-fl ll.nlieriuiliter, tlie secondary oi'ierutine' liefe for 'u'liir'b tlie.leek is adjusted is inserted and rot v to line up tlie'guard and:idjuiitxible iblers sind retrfii't the bolty libgure t3. f the latteris airain e ended to locked position, the tuinlileis t outelikeiiiuent.y requiring tl mary and seeoi'ularyY kers tor tbeunlofliingf operation, it is des d to adjust ilie lock to render ii'respons're to a ditlereut sereudiry tlie closure ooiitrolled by tlielocl n u be to etl'ord ereess to its side' tor i una ry Sl il therein otthe change key. Before the latter is inserted, however7 the holt must beextended to locked position to brine' its keyhole to position to permitinsertion oi the change key. The operation of the change key exclusivelyat the rear side ol the loek or on the inner-side of the closure.renders the lock ot' course more secure against unauthorized operationand the necessary extension Aot' the bolt prevents the closure frombeing sluit and accidentally producing a `v`lockout.

'lhe lock may then be adjusted by tirst insei-ting` and partiallyrotating the previous or old sec ondary key, indicated at 5S, theprimary key not being used duringadjustment because not required and torthe further reason that its use would set up the v primary tumbler insuc-h position as to prevent insertion of the change key7 as is apparentfrom Figure 5. The primary slide therefore blocks the withdrawal ot thebolt, as shown in Figure 8, and thus limits the movement ot' thesecondary key to the partial rotation referred to above and to theposition in which the guard and adjustable tuinblers are brought to boltreleasing position in which their openings Alor the change key arealigned. vThe change key is then inserted and rotated as described todisconnect the sect-ions ot' each adjustable tumbler7 as shown in Figure8, and allow the sweep sections to drop against thel stop post 3l). Theprevious secondary key is then removed7 Figure 7, and the guard tumblerdrops slightly and obst-ructs removal ot the change key during theadjustment. ri`he new secondary key, indicated at 59, Figures 8 and 9,is then inserted and partially rotated to raise the `guard tumbler andthus permit the withdrawal of the cha-nge key. The bits of the new keythus adjust the sweep sections to position to render the lock responsiveto it alone and the withdrawal ot' the change key forces the detentsections to reenn'age the sweep sections thus reuniting the adjustabletumbler sections for movement together one. The newsecoiulary key maythen be removed ior normal .use with the primary key.

The invention thus provides a multiple key lock which can only beoperated in normal use by employing` the proper primary and secondarykeys t'or which it is set u1. The sections of the adjustable tnmblerscannot be disconnected .lor adjnstiire` the lock without firstemployingn the correct secondary key of the series corresponding withthe lock in order to remove the obstruetiirgr surfaces from the changekey openingY and then usiner a change key designed for the lock. l henthe change key is once inserted and the previous secondary key removedthe change key is maintained inthe lock and effectively holds its partsn bolt releasing position with the bolt er;- tended or in lockedposition. he change key can only be removed to again render the lockoperative by the use et a proper secondary key which insures the settingup olif the loek to such secondary key and not to a toi-eign instrumentor to an inetl'ective position in the'lock. These and othersateeuarding' advantages are obtained by a comparatively simpleconstruction7 requiring but a single set ot tumblers and a single. keybarrel and bolt. By reason of this simplicity ol construction the lockis inexpensive to .niaiiutacture and also more reliable and durable inoperation.

l claim as my invention:

l. lock con'iprisiimr a bolt, adjustable key operated means` forcontrolling the bolt, a device for adjusting said means to render thesame responsive to dilierent operating keys and cooperating parts onsaid device and bolt Yfor maintaining' the latter in a given positionduring; operation oi' said device.

2. A. loek comprising a bolt, adjustable key operated means forcontrolling the boltj a device tor detachable insertion in the lock toadjust said means and render the same responsive to different operating*keys. and cooperatingy parts on said device and bolt tor maintainiim thelatter in extended position during' complete operation of said device. f

3. A lock comprisingr a bolt, adjustable means t'or controllingi thebolt operated by keys inserted in one side ot' the lock, a.

chantre key tor insertion in the other side or said lock to adjust saidmeans and render the same responsive to selected ones ot ditlerentoperatingT keys and interengaging parts on said change key and bolt formaintainingl the latter in extended position during complete operationot the change key.

l-. A lock comprising a bolt having an openingv therein` adjustable keyoperated means tor controllingY the bolt, and a change key 't'orinsertion in the lock through said bolt opening to render said meansresponsive to ditl'erent operating keys and serving to maintain the boltin extended position during` such adjustment.

5. A lock comprising a bolt, changeable key operated means forcontrolling said bolt7 a change key for insertion in the lock to changesaid means and render the same responsive to ay selected one of aplurality of different operating keys, and-cooperating parts on saidbolt and change -key for obstruetingir insertion ot the latter exceptwhen said bolt is in extended position and 'tor maintaining` said boltin extended position vhile said change key is inserted in the lock.

6. A lock comprising a bolt7 changeable key operated tumblers forControlling said Leanser bolt, and a change key for insertion in thelock to change said tumblers to render the same responsive to selectedoperating keys, said tumblers and change key having' a construction andarrangement obstructing insertion of the latter except when saidtumblers are in bolt releasing position and serving to maintain saidtumblers in said position while said change key is inserted in the lock.

'i'. A lock comprising a bolt, changeable key operated tumblers forcont-rolling said bolt having openings therein, and a chance key forinsertion in the lock through said tumbler openings, when the tumblersare in bolt releasing position exclusively, to change said tumblers andrender the same responsive to selected operating keys and serving tomaintain the tumblers lin bolt releasing position while inserted invthe'lock.

8. A lock comprising a bolt, changeable key operated tumblers iorcontrolling said bolt, a change key for insertion in the lock to changesaid tumblers and render the same responsive to selected operating keys,a. guard tumbler normally obstiaicting insertion of said change key andmoi/'able by any one of said operating keys to position tor admittingsaid change key, and cooperating means on said guard tumbler and changekey for obstructing withdrawal of the change key except While said guardtumbler is positioned by an operating key.

9. A. lock comprisinga bolt, changeable key operated tumblers for`controlling said bolt, a change key for insertion in the lock -to chan esaid tumblers and render the same responsive to selected operating keys,a spring actuated guard tumbler normally obstructing insertion of saidchange key and having an opening therein, said guard tumbler'beingmovable by any one ci said operating keys to bring said opening to posi:

tion for admitting the change key, and cooperating part-s on said guardtumbler and change key for obstructing Withdrawal of said change keyexcept While said guard tumbler is positioned by an operating key.

10. A lock comprising a bolt, changeable tumbler means, a change key forinsertion in vthe lock to render said tumbler means responsive toselected operating keys, guard tumbler means tending normally toobstruct insertion or removal of said change key, and movable by partialoperation of any one of said operating keys to position for releasingsaid change ey, and stop means lumtmg movement of said operating keys'tosaid partial operation required for positioning the guard tumbler means.

`il. A lock comprising bolt, primary tumbler means controlling the boltand responsive to a primary key, changeable seeondary tumbler meanscontrolling the bolt andrespolnsive to secondary oper a barrel receivingsaid secondary key and operated thereby, a change key for insertion intbe lock to render said secondary tumbler means responsive to selectedsecondary operating keys, guard tumbler means 'tending' normally toobstruct insertion or removal of said change key and movable by partialoperation oi any one of said secondary keys to position for releasingsaid change ke and cooperating parts on said barrel and bolt servingwhen said bolt is lield extended by said primary tumbler means to limittbe movement of the barrel and secondary key to said partial operationrequired for positioning the guard tumbler means.

l2. A lock comprising a bolt, changeable key operated tumbler meanscontrolling movement oi the bolt, barrel means receiving the operatingkeysand actuated thereby to move the bolt, a change `key for insertionin the lock to render Said tumbler means responsive to selectedoperating keys, and also to maintain tbe boltin a given position7 guardtumbler means tending normally to obstruct insertion and removal saidchange key and movable by partial operation oit any one of saidoperating keys to position for releasing said change key, andCooperating parts on said barrel and bolt serving when the latter ismaintained in said given position by tbe change key to limit themovement of the barrel and sec-- ondary key to said partial operationrequired for positioning the guard tumbler means.

13. lock having' a bolt, key operated.

meansv comprising a changeable tumbler device for controlling movementloi said bolt, a change key for insertion in the lock when said means aremoved to bolt releasing vposition'by one operating key for changing saiddevice to render the same responsive to a second operating key and formaintaining said means in said bolt releasing position, and cooperatingparts on said means and change key obstructing withdrawal of the latterand released by insertion and actuation of said second operating key.

14. A lock comprising a bolt, adjustable tumbler means for controllingmovement of the bolt and an adjusting device detacbably insertible inthe lock, when said tumbler means are moved to bolt releasing positiontumbler means in said position and for adjusting said tumbler means torender tbel same responsive to a. second operating kev.'

15. A lock comprising a ibolt, adgustable tumbler means pivotallysupported on a spindle for controlling movement of tbe bolt, and anadjusting device insertible in lock at a point spaced laterallyvoi saidspindle when said tumbler means are moved to bolt releasing position byone operatiu y v, maintaining the tumbler means in sition and foradjusting the tumbler means to render the same responsive to a secondoperating;r key.

1G. A look comprising a casing provided with a keyhole, a bolt in theeasing having a keyhole arranged for registry vwith said casing keyholein extended position of the bolt, adjustable tumbler means controllingmovement of the bolt., and an adjusting key insertible in said bolt andeasing keyholes for adjusting the tumbler means` to render the sameresponsive to a selected operating key and for maintaining the bolt iner;4 tended position during said adjustment.

17. A lock comprising a boltJ adjustable tumblers pivotally supportedadjacent one end for key operation at the other to control movement otthe bolt and havinjj7 keyholes therein spaced from said supported endsand arranged to be brought into registry when said tumhlers are moved byone operating key to bolt releasing position, and a change keyinsertible insaid keyholes for adjusting said tumblers to correspondwith a different operating key and i'or maintaining the tumblers in saidreleasin" position during said adjustment.

18. A lock comprising a easing provided with a keyhole, a bolt in thecasing having,l a keyhole arranged for registry with said casing keyholein extended position of the bolt7 adjustable tumblers in the casingpivotally supported adjacent one end tor key operation at the other to.control movement or the bolt and having' keyhoies therein spaced Ytromsaid supported ends and arranged to be brought into reffistry with oneanother and with said bolt and easing key holes when said tumblers aremoved by one operating key to bolt releasing; position, and a' changekey insertible in said keyholes for adjusting said tumblers tocorrespond with a diii'erent operating key and for maintain ing saidtumblers and boit in said positions during` seid adjustment. n

it). A lock effimprising a holt, adjustable tumblers pivotally supportedadjacent one end for key operation at the other to eontroi movement oi'the bolt and having keyholes therein spaced from said supported ends andarranged to be brought into registry when said tumblers are moved by oneoperating; key to bolt releasing; position, a guard tumbler liaving 'akeyhole therein and adapted to be moved to bringV the latter intoregistry with the keyholes or said adjustable tumblers by any ot theoperating keys oi the lock, a ghangre key insertilile 'into saidregistered keyholes for adjusting said a l justable tumlilers 'tocorrespond with a different operatingy key and for maintaining saidadjustable tumble-rs bolt releasing position, and cooperating nai-ts ongua-rd tumbler and change lu ,tor obstrueh Leanser itil: GLU

ing Withdraw/ai of thelatter justinent. A

Q0. ln an adjustable leek, the Combination ot a bolt having a keyholetherein, adjustable tunlblers provided with keyholes, guard tumblerhaving a keyhoie, said ad 710 justable and gua-rd tumblers being morabieby one operating key to bring;r the keylioles thereoii into registrywith 'id holt l in a given position the bi t, a chai for insertion insaid keyiir N. to oban,nu adjustable tumblers to correspond wil, secondoperating key and to maintain s adjustable tumblers and bolt in positionif ing said adjustment, and eooperating pa on said ,guard tumbler andchange key ior maintaining: the latter in sait, keyholes during saidadjustment.

21. in an adjustable loeir, the eoinbin` 't' of a bolt having fence,adjustahie blers each comprising a key operated sive-eo section and alsoa gated detent seetio ingr a keyhole arranged :tor reg y keyholes ot'the other tumblers in leasing position, said tumbiers otaliy supportedon common sections of each tumbler inovabie to each other transverselysaid a engaging parts on the sections of bler for releasabiy eonneetingthe f different positions of relative adjusV4 and yieldable meanstendingr to n said parts engaged. and an adju insertible in saidkeyholes when are brought into registry by one key to disengage saidtumbler e positioning Cooperation of the s with a second (inermi-ingrvkey.

2&2. ln an adjustable look, the combi ot a bolt having akeyhole therein,able tumblers each compris?. g las ated sweep section and also a detenihaving a keyhole arranged ihL istry 'with the keyholos ot the bol othertumbiers in bolt releasinlf no, terengaging parts on the s tumbler forreleasably eonn in different 'positions ot rela means supporting thetumoers nient by seieeteu operating key to 'no leasing' position andalso "lier nio the sertionsv ol each tunibie' rela each other to engageand dis;l iarts.y and an adjusting' key ins lieyhoies oi the bolt andtun brought into e .stry by one oL to maintain s nl bolt and datentposition and to dises 'inert .said t tions; ifi' positiono eooperaaimior sweep sections with a seeond op; a

in an adjustrlsle lock, the ro ot' a bolt, adjusts, ingia lief.'operate' j a, il nt section having' yawn arranged for registry .with thekeyholes oi? the other tumblers in bolt releasing position,interengaging parts on the sections of each tumbler for releasablyConnecting` the same in different positions of relative adj ustnient, aguard tumbler having akeyhole arranged for registry in bolt releasingposition with the. keyholes of the adjustable tuinhlers` meanssupporting the tuinblers for morement by a selected operating key tobolt re` leasing position and also for movement ot' the sections of eachadjustable tumbler rela tively to each other to engage and disengagresaid parts, and an adjusting: key insertihle in the keyholes of thetuinblers when brought into registry by one operating key to maintainthem in position and to disconnect said tunihler sections Aforpositioning Cooperation of said sweep sections with a seeond oper-atingr key.

2i. ln an adjustable look. the combination of a holt, a single set oftuinhlers controlling

